[Mobhack]

Blue on blue is dependant on
a) own forces being in the plane's search zone
b) Then failing a pilot skill based roll to ID them as blue
or
c) The pilot attacks a nearby Red unit, and the collateral damage takes out the Blue who were close by (CBU say).

- Search zone inceases if the spotter has no LOS or fails a skill check, so friendlies outside the KM or so the plane searches arount the initial x,y can get targeted.
- Search area is much larger for ARM (but ARM will usually not target freindly frequencies)

Anyway - I seem to have found why some air attacks will "wander" way off the initial x,y and target friends too far from it.

But if you want to fully avoid blue on blue - ensure the plotted x.y is at least 20 hexes from Blue at the time of the strike or - that you can guarantee the FOO guiding the strike in has "eyes on" the target hex at that point. (no nasty smoke arrived from arty meanwhile etc). Better yet - keep air strikes 30-40 hexes from Blue forces.

Cheers
Andy